It may be a slight detour from the thread, but I must post it.
What I find most vexing is to try to forgive people who are NOT sorry for what they did to me. It is the act of the will, not emotional, and yet my emotions remain in such turmoil even after I intellectually decide to forgive.
Very good, in the spirit of Confess your faults one to another, and pray one for another, that ye may be healed. (James 5:16)
I myself unconsciously can go back to harboring a grudge of mistreatment I endured by another, even after choose to drop the charges in my heart, and thus must do so again, and which is what I want to do, and which frees up myself.
But the reason forgiving the impenitent or those who are ignorant of the harm they cause can be hard is because we have a strong sense of justice from early childhood on. One of the first things we typically say is "It's not fair!" Thus when we are wronged it seems right that the evil-doer should be made to face justice, and make apology and or reparations of whatever sort is fitting. And the idea of letting them go seems wrong in a real sense.
And indeed Scripture provides for confronting those who wronged us and excommunicating the impenitent.(Mt. 18:15ff) But this should be done out of principal, that the slandered etc. be corrected as one harmful to the name and body of Christ, which we should always be conscious us (preaching to self here), and not because we personally have a grudge.
For as I see it, we are not only to forgive those who are ignorant of what they are really doing in hurting us, as per the Lord and Stephen, (Luke 23:34; Acts 7:60) but while not being opposed to making known to the person who has injured us what he did, we are to take the higher road and not seek satisfaction:
Now therefore there is utterly a fault among you, because ye go to law one with another. Why do ye not rather take wrong? why do ye not rather suffer yourselves to be defrauded? Nay, ye do wrong, and defraud, and that your brethren. (1 Corinthians 6:7-8)
But while we should be holding a grudge toward a son who cracks up our car, yet for principle's sake then in love we can require him to pay for it, when he can, for the sake of teaching him responsibility. This is not a case of withholding forgiveness but of development of character.
However, in all this we should be focused on our own faults and how we are hurt others rather than vice versa.
But note also that there is also contrived injustice, in which the devil appeal our strong sense of justice to working to convince us that we were wronged when we were not, or to magnify some injustice that affected us, and inculcate a victim-entitlement mentality.
Which it seems the devil has, as if he was wronged by being abased due to his selfish assertive self-exaltation in the original "Occupy (the Throne)/Share the Wealth movement." . And then proceeded to seduce Eve into thinking she was being wrongfully treated by God since He should not withhold from her what God possessed (knowledge). And that thus she was justified in her disobedience to God to get what was rightfully here. Thus was born the first damnable Communist, liberal politician and turnstile jumper. Buyer beware of the devil/s goods.